Viral infertility in cattle.
D000034:Abortion, Veterinary / Q000209:etiology*; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases; D005260:Female; D007246:Infertility / Q000209:etiology / Q000662:veterinary*; D008297:Male; D011247:Pregnancy; D014777:Virus Diseases / Q000150:complications / Q000662:veterinary*